St. Thomas & Southwestern Ontario
First-Time Home Buyer Mortgage in St. Thomas, Ontario
Buying your first home in St. Thomas often means weighing an older, well-priced property against a newer one further out — and understanding how lenders read your income before you fall in love with a listing.
This page walks through the numbers in the order they actually matter.
Nandan Bajani · Licensed Mortgage Agent | Ontario · The Mortgage Firm Inc.
St. Thomas, Ontario — Daily Update
Compare Today's Mortgage Rates
As of September 18, 2026
2.25% overnight rate held steady, prime near 4.45%, but rising bond yields (5-year GoC near 3.65%) are pushing fixed rates higher
2-Year
Fixed
4.09%Lowest
Big 6 Bank
Variable
—
3-Year
Fixed
4.19%
Big 6 Bank
Variable
3.84%
Canadian Lender
5-Year
Fixed
4.24%
Canadian Lender
Variable
3.40%Lowest
Canadian Lender
Rates shown are for insured mortgages (down payment under 20%). Conventional/uninsured pricing may differ — contact me for your exact rate.
Source: Ratehub.ca public rate table. Rates shown are examples from a public table and are subject to qualification and change.
Plan your numbers
Run Your Numbers
From first numbers to keys
Your First-Time Buyer Journey
- 1
Get pre-approved
Know your real number before you shop
- 2
Set your range
Down payment + closing costs + a comfortable payment
- 3
Shop with a realtor
Pre-approval in hand, offers get taken seriously
- 4
Offer & conditions
Financing, inspection, and any other conditions
- 5
Final approval
Lender confirms the specific property
- 6
Closing day
Keys in hand
Down payment: how much you truly need
Minimum is 5% of the first $500,000 and 10% of any portion between $500,000 and $999,999. Under 20% down, mortgage default insurance applies and the premium is added to your mortgage balance. Funds must be traceable for 90 days; gifted down payments from immediate family are accepted by most lenders with a signed gift letter.
5%
First $500,000
10%
$500,000–$999,999 portion
20%
$1,000,000 or more
What You'll Need
Government-issued photo ID
Recent pay stubs, T4s or Notices of Assessment
Proof of down payment (90-day history, or a signed gift letter from immediate family)
Employment letter
Purchase agreement (once you have one)
Closing costs St. Thomas buyers forget
Set aside roughly 1.5% to 3% of the purchase price beyond your down payment.
- Ontario land transfer tax, with a first-time buyer refund of up to $4,000 for eligible buyers
- Lawyer fees, title insurance and disbursements
- Home inspection and, where required, appraisal
- Property tax and utility adjustments owed back to the seller
- Moving costs and immediate repairs — worth budgeting extra on an older home
How lenders decide what you can afford
Two ratios drive it. Gross Debt Service compares housing costs — principal, interest, property taxes and heat — to gross income. Total Debt Service adds every other monthly obligation. Both are calculated at the stress-test qualifying rate, not your contract rate.
Programs worth asking about
Eligibility rules change and depend on your situation, so treat these as questions to raise rather than guarantees: the Home Buyers' Plan RRSP withdrawal, the First Home Savings Account, the federal First-Time Home Buyers' Tax Credit, and the Ontario land transfer tax refund. I'll confirm what currently applies to your file rather than quoting a number that may have moved.
St. Thomas-specific considerations
Entry-level pricing in St. Thomas has historically sat below London, which is exactly why first-time buyers look here. A larger share of purchases are older homes where a lender may require work to be completed, or where a purchase-plus-improvements structure makes more sense than paying for renovations with credit cards after closing. If you commute to London for work, budget the vehicle cost into your qualifying picture — lenders count it against your debt service, not just the mortgage payment.
Related reading
Questions people ask
What should St. Thomas homebuyers know about mortgage financing?+
Two things stand out locally: older homes may need lender-required work or a purchase-plus-improvements structure, and variable income like overtime or shift premiums is treated very differently from lender to lender. Both are worth sorting out before you make an offer.
Can my parents gift my down payment?+
Most lenders accept gifted down payments from immediate family with a signed gift letter and proof the funds were transferred and are non-repayable.
Is St. Thomas cheaper to buy in than London?+
Entry-level pricing has historically sat below London, which is one reason first-time buyers and London commuters look here — though the right comparison always depends on the specific property and neighbourhood.
Should I buy with less than 20% down?+
Sometimes yes — waiting to save 20% can cost more than the insurance premium if prices or rates move. It's a math question specific to your timeline.
What credit score do I need?+
Prime lenders generally look for 680 or higher, with lower scores possible on insured and alternative options depending on the rest of the file.
Plan your first St. Thomas purchase with real numbers
A short conversation is usually enough to know what's realistic. No obligation, no pressure.